Question

In a solution 50 grams of copper sulphate is dissolved in 450 grams of water calculate the concentration of solution​

Answer 1

Working out:

In the above question, we are given with the amount of solute and solvent, and we need to find the concentration of the solution.

GiveN:

• Mass of solute = 50 g
• Mass of solvent = 450 g

We have to find the concentration of the solution....?

Before we start calculating, let me clear that concentration here is in terms of mass of solute and mass is solution.

• Solution = Solute + Solvent.

So, after we finding these, We can find the conc. by mass.

• Mass of the solution = 50 g + 450 g = 500 g

Now, by using formula:

${ \boxed{ \sf{Conc. \: by \: mass = \frac{Mass \: of \: solute}{Mass \: of \: solution} \times 100}}}$

We have all our values to be used in the formula, So let's plug in them to get our required answer.

$\sf{ \longrightarrow{Conc. \: by \: mass = \dfrac{50 \: g}{500 \: g} \times 100}}$

The units gets cancelled and we get our %,

$\sf{ \longrightarrow{Conc. \: by \: mass = \dfrac{100}{10} = 10\%}}$

So, the concentration of the solution by mass is:

$\Large{ \boxed{ \red{ \sf{10\% \: (Answer)}}}}$

And we are done !!

Answer 2

GIVEN :-

• Iɴ ᴀ sᴏʟᴜᴛɪᴏɴ 50 ɢʀᴀᴍs ᴏғ ᴄᴏᴘᴘᴇʀ sᴜʟᴘʜᴀᴛᴇ ɪs ᴅɪssᴏʟᴠᴇᴅ ɪɴ 450 ɢʀᴀᴍs ᴏғ ᴡᴀᴛᴇʀ .

TO FIND :-

• Tʜᴇ ᴄᴏɴᴄᴇɴᴛʀᴀᴛɪᴏɴ ᴏғ sᴏʟᴜᴛɪᴏɴ .

SOLUTION :-

☯︎ Hᴇʀᴇ,

• $\bf\red{Solute}$ = ᴄᴏᴘᴘᴇʀ sᴜʟᴘʜᴀᴛᴇ

• $\bf\red{Solvent}$ = ᴡᴀᴛᴇʀ

ᴡᴇ ʜᴀᴠᴇ ᴋɴᴏᴡ ᴛʜᴀᴛ,

• $\bf\purple{Solute\:+\:Solvent\:=\:SOLUTION\:}$

ᴄᴏɴᴄᴇɴᴛʀᴀᴛɪᴏɴ ᴏғ sᴏʟᴜᴛɪᴏɴ :-

$\pink\checkmark\:\bf\orange{Concentration\:=\:\dfrac{Mass\:of\:Solute}{Mass\:of\:Solution}\times{100}\:}$

ᴡʜᴇʀᴇ,

• $\bf\red{Mass\:of\:Solute}$ = 50ɢʀᴀᴍs

$\bullet\:\bf\red{Mass\:of\:Solution\:=\:\blue{Mass\:of\:Solute}\:+\:\pink{Mass\:of\:Solvent}\:}$

➳ ᴍᴀss ᴏғ sᴏʟᴜᴛɪᴏɴ = 50 + 450

➳ ᴍᴀss ᴏғ sᴏʟᴜᴛɪᴏɴ = 500 ɢʀᴀᴍs

$\bf{:\implies\:Concentration\:=\:\dfrac{50}{500}\times{100}\:}$

$\rm{:\implies\:Concentration\:=\:\dfrac{50}{5}\:}$

$\rm{:\implies\:Concentration\:=\:10\:\%}$

$\huge\red\therefore$ Tʜᴇ ᴄᴏɴᴄᴇɴᴛʀᴀᴛɪᴏɴ ᴏғ sᴏʟᴜᴛɪᴏɴ is "10%" .